CN114713577A - Cleaning method of coal gas deamination equipment - Google Patents
Cleaning method of coal gas deamination equipment Download PDFInfo
- Publication number
- CN114713577A CN114713577A CN202210442425.2A CN202210442425A CN114713577A CN 114713577 A CN114713577 A CN 114713577A CN 202210442425 A CN202210442425 A CN 202210442425A CN 114713577 A CN114713577 A CN 114713577A
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- cleaning
- saturator
- mother liquor
- pump
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- 238000004140 cleaning Methods 0.000 title claims abstract description 112
- 230000009615 deamination Effects 0.000 title claims abstract description 40
- 238000006481 deamination reaction Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000003034 coal gas Substances 0.000 title claims description 27
- 239000012452 mother liquor Substances 0.000 claims abstract description 107
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000002425 crystallisation Methods 0.000 claims abstract description 27
- 230000008025 crystallization Effects 0.000 claims abstract description 27
- 238000003860 storage Methods 0.000 claims abstract description 22
- 239000002253 acid Substances 0.000 claims description 28
- 238000005406 washing Methods 0.000 claims description 13
- 238000005086 pumping Methods 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims 5
- 239000010413 mother solution Substances 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 12
- 239000007921 spray Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a cleaning method of gas deamination equipment, which comprises the following steps: increasing the acidity of the mother liquor in the full-flow tank to 9-12% to obtain cleaning mother liquor, circulating the cleaning mother liquor in the full-flow tank between the full-flow tank and the saturator and between the mother liquor storage tank and the saturator by using a first mother liquor pump, circulating the cleaning mother liquor in the saturator between a crystallization pump and the saturator and circulating the cleaning mother liquor in the saturator between a second mother liquor pump and the saturator; the cleaning method comprises the steps of enabling cleaning water to enter a full flow groove, a first mother liquid pump, a saturator and a mother liquid storage tank from a full flow pipe, enabling the cleaning water to enter the saturator, a second mother liquid pump and a crystallization pump from a third communicating pipe, enabling the temperature of the cleaning water to be T and the pressure of the cleaning water to be P, controlling the temperature of the cleaning water to be more than or equal to 50 ℃ and less than or equal to 80 ℃, and controlling the pressure of the cleaning water to be more than or equal to 0.45MPa and less than or equal to 0.65MPa, and being good in cleaning effect.
Description
Technical Field
The invention relates to the technical field of coal gas deamination equipment, in particular to a cleaning method of coal gas deamination equipment.
Background
The gas deammoniation equipment is used to eliminate ammonia from gas and includes a saturator to wash ammonia from gas by contacting mother liquid with gas inside the saturator. The specific process is as follows: concentrated sulfuric acid from an acid pump is supplemented into the full-flow tank, the concentrated sulfuric acid enters the saturator through the first mother liquid pump to be sprayed, coal gas is washed, mother liquid in the saturator enters the saturator through the second mother liquid pump to be sprayed, the mother liquid enters the upper chamber of the saturator after being contacted with the coal gas through the spray header, one part of the mother liquid flows into the full-flow tank through the full-flow pipe through the full-flow port, the other part of the mother liquid is pumped into the saturator through the second mother liquid pump to be sprayed with the washing coal gas, the rest of the mother liquid enters the lower chamber of the saturator, crystals are removed through the crystallization pump, and the mother liquid flows back to the full-flow tank to form a circulation. During the operation of the gas deamination equipment, part of crystals formed in the deamination process and impurities such as tar and coal dust contained in the gas can be accumulated in the saturator and pipelines such as a full-flow port, a full-flow pipe and a communicating pipe in the gas deamination equipment, so that parts (such as a first pump, a second pump, a crystallization pump, a full-flow groove and the like), a liquid flow port, an airflow port and the pipeline in the gas deamination equipment are blocked, and the normal operation of the gas deamination equipment is influenced. Therefore, after the gas deamination equipment runs for a period of time, the gas deamination equipment needs to be cleaned, but the cleaning effect of the prior art on the gas deamination equipment is poor, and the production requirement cannot be met.
Disclosure of Invention
The embodiment of the invention aims to: the cleaning method of the coal gas deamination equipment is good in cleaning effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
the cleaning method of the coal gas deamination equipment comprises the following steps:
step S100, increasing the acidity of the mother liquor in the full-flow tank to 9-12% to obtain a cleaning mother liquor, circulating the cleaning mother liquor in the full-flow tank between the full-flow tank and a saturator and between a mother liquor storage tank and the saturator by using a first mother liquor pump, circulating the cleaning mother liquor in the saturator between a crystallization pump and the saturator and circulating the cleaning mother liquor in the saturator between a second mother liquor pump and the saturator;
step S200, adding cleaning water into a full flow pipe between the full flow pipe and the saturator, enabling the cleaning water to enter the full flow pipe, the first mother liquid pump, the saturator and the mother liquid storage tank from the full flow pipe, adding the cleaning water into a third communication pipe between the saturator and the crystallization pump, enabling the cleaning water to enter the saturator, the second mother liquid pump and the crystallization pump from the third communication pipe, enabling the temperature of the cleaning water to be T and the pressure of the cleaning water to be P, controlling the temperature of the cleaning water to be more than or equal to 50 ℃ and less than or equal to 80 ℃, and controlling the pressure of the cleaning water to be more than or equal to 0.45MPa and less than or equal to 0.65 MPa.
As a preferable scheme of the cleaning method of the coal gas deamination equipment, the circulation time of the cleaning mother liquor between the full-flow tank and the saturator and between the mother liquor storage tank and the saturator is controlled to be 60-90min, and the circulation time of the cleaning mother liquor between the crystallization pump and the saturator and the circulation time of the cleaning mother liquor between the second mother liquor pump and the saturator is controlled to be 60-90 min.
As a preferable scheme of the cleaning method of the coal gas deamination equipment, the temperature T of the cleaning water is 60 ℃.
As a preferable scheme of the cleaning method of the coal gas deamination equipment, the pressure P of the cleaning water is 0.5 Mpa.
As a preferable scheme of the cleaning method of the coal gas deamination equipment, the concrete operation of adding the cleaning water into the full flow pipe is as follows: and opening a fourth valve on the full flow pipe, and introducing the washing water into the full flow pipe from the fourth valve.
As a preferable scheme of the cleaning method of the gas deamination equipment, adding the cleaning water into the third communicating pipe is operated as follows: and opening a third valve on the third communication pipe, and adding the cleaning water into the third communication pipe from the third valve.
As a preferable scheme of the cleaning method of the coal gas deamination equipment, the step S200 further includes: flushing the wash water in the full flow tube interior for a first length of time and flushing the wash water in the third communication tube for a second length of time.
As a preferable scheme of the cleaning method of the coal gas deamination equipment, the first time period and the second time period are both 5 min.
As a preferable scheme of the cleaning method of the coal gas deamination equipment, the specific steps of increasing the acidity of the mother liquor in the full flow tank to 9-12% are as follows: pumping an acid solution into the mother liquor inside the full flow cell using an acid pump, wherein the acidity of the acid solution is greater than the acidity of the mother liquor.
As a preferable scheme of the cleaning method of the gas deamination equipment, before the acid liquor is pumped into the full-flow tank, the acidity of the mother liquor in the full-flow tank is firstly obtained, then a preset amount of the acid liquor pumped into the full-flow tank is determined according to the acidity of the mother liquor in the full-flow tank, and the preset amount of the acid liquor is pumped into the full-flow tank to be mixed with the mother liquor, so that the cleaning mother liquor is obtained.
The invention has the beneficial effects that: the impurities in the first mother liquid pump, the saturator, the full-flow groove, the mother liquid storage tank, the crystallization pump, the second mother liquid pump and each pipeline are discharged by adding 50-80 ℃ of cleaning water, and the cleaning water at higher temperature is more favorable for further dissolving the impurities.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
Fig. 1 is a structural diagram of a gas deamination apparatus according to an embodiment of the present invention.
In the figure:
1. a saturator; 101. an upper chamber; 102. a lower chamber; 2. a first mother liquor pump; 3. a second mother liquor pump; 4. a full flow groove; 5. a mother liquor storage tank; 6. a crystallization pump; 7. an acid pump; 8. a full flow tube; 9. an overflow pipe; 10. a first communication pipe; 11. a second communicating pipe; 12. a first delivery pipe; 13. a third communicating pipe; 14. a fourth communicating pipe; 15. a third delivery pipe; 16. a fifth communicating pipe; 17. a first valve; 18. a second valve; 19. a third valve; 20. a fourth valve; 21. a fifth valve; 22. and (4) a spray head.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a cleaning method of gas deamination equipment. As shown in fig. 1, the gas deamination equipment comprises a saturator 1, a full flow tank 4, a mother liquor storage tank 5, a first mother liquor pump 2, a second mother liquor pump 3, an acid pump 7, a crystallization pump 6 and a crystallization tank (not shown in the figure), wherein the saturator 1 is communicated with the full flow tank 4 through a full flow pipe 8, the acid pump 7 can pump acid liquor into the full flow tank 4, the full flow tank 4 is communicated with the first mother liquor pump 2 through a first communication pipe 10, the first communication pipe 10 is provided with a first valve 17, the first communication pipe 10 can be selectively closed through the first valve 17, the mother liquor storage tank 5 is communicated with the full flow tank 4 through the full flow pipe 8, a second communication pipe 11 is connected between the mother liquor storage tank 5 and the first mother liquor pump 2, the second communication pipe 11 is provided with a second valve 18, the second valve 18 is operated to selectively communicate the mother liquor storage tank 5 with the first mother liquor pump 2, the first mother liquor pump 2 is connected with the saturator 1 through a first delivery pipe 12, and one end of the first delivery pipe 12 far away from the first mother liquid pump 2 extends into the saturator 1, and the first delivery pipe 12 extends into the first arrangement spray head 22 in the saturator 1. The interior of the saturator 1 is provided with an upper chamber 101 and two lower chambers 102 communicating with the upper chamber 101, the upper chamber 101 is located above the lower chambers 102, the two lower chambers 102 communicate with each other, and the two lower chambers 102 are distributed at intervals, the crystallization pump 6 is connected with the lower chambers 102 through a third communicating pipe 13, a third valve 19 is arranged on the third communicating pipe 13, the crystallization pump 6 is connected with the upper chamber 101 of the saturator 1 through a crystallization tank (not shown in the figure) and a second delivery pipe (not shown in the figure), the second mother liquid pump 3 is connected with the saturator 1 through a fourth communicating pipe 14 and a third delivery pipe 15 respectively, the third delivery pipe 15 is positioned below the fourth communicating pipe 14, and the fourth communicating pipe 14 is located below the liquid level of the saturator 1, one end of the third conveying pipe 15 far away from the second mother liquid pump 3 extends into the saturator 1, and one end of the third conveying pipe 15 extending into the saturator 1 is provided with a spray head 22. The upper end of the saturator 1 is respectively provided with a gas inlet (not shown) and a gas outlet (not shown), the lower chamber 102 is communicated with the full flow pipe 8 through a fifth communicating pipe 16, the full flow pipe 8 is provided with a fourth valve 20, and the overflow pipe 9 is provided with a fifth valve 21. In the coal gas deamination equipment, coal gas enters a saturator 1 from a coal gas inlet, an acid pump 7 pumps mother liquor into a full-flow tank 4, as acid liquid in the full-flow tank 4 increases, a part of mother liquor overflows into a mother liquor storage tank 5 from an overflow pipe 9, the other part of mother liquor is pumped into a first communication pipe 10 by a first mother liquor pump 2 and sprays coal gas in the saturator 1 through a spray head 22, the coal gas is washed, the mother liquor is contacted with the coal gas and then enters an upper chamber 101 of the saturator 1, a part of mother liquor flows into the full-flow tank 4 from a full-flow port through a full-flow pipe 8, the other part of mother liquor is pumped back into the saturator 1 by a second mother liquor pump 3 and continuously sprays the coal gas in the saturator 1, the washed coal gas is discharged out of the saturator 1 from a coal gas outlet, double-headed arrows in the flow direction of the coal gas in figure 1, the remaining mother liquor enters a lower chamber 102, is pumped into a crystallization tank by a crystallization pump 6, and then flows into the full-flow tank 4 after being crystallized, forming a cycle.
The cleaning method of the gas deamination equipment is described in detail below by combining the specific structure of the gas deamination equipment, and comprises the following steps: step S100, increasing the acidity of the mother liquor in the full flow tank 4 to 9-12% to obtain a cleaning mother liquor, circulating the cleaning mother liquor in the full flow tank 4 between the full flow tank 4 and the saturator 1 and between the mother liquor storage tank 5 and the saturator 1 by using the first mother liquor pump 2, circulating the cleaning mother liquor in the saturator 1 between the crystallization pump 6 and the saturator 1 and circulating the cleaning mother liquor in the saturator 1 between the second mother liquor pump 3 and the saturator 1;
step S200, adding cleaning water into a full flow pipe 8 between a full flow tank 4 and a saturator 1, enabling the cleaning water to enter the full flow tank 4, a first mother liquid pump 2, the saturator 1 and a mother liquid storage tank 5 from the full flow pipe 8, adding the cleaning water into a third communicating pipe 13 between the saturator 1 and a crystallization pump 6, enabling the cleaning water to enter the saturator 1, a second mother liquid pump 3 and the crystallization pump 6 from the third communicating pipe 13, enabling the temperature of the cleaning water to be T and the pressure of the cleaning water to be P, controlling the temperature of the cleaning water to be more than or equal to 50 ℃ and less than or equal to 80 ℃, and controlling the pressure of 0.45Mpa and less than or equal to 0.65 Mpa.
It can be understood that impurities such as crystals can be accumulated in the gas deamination equipment after long-time operation, the acidity of the mother liquor in the full flow tank 4 is increased to 9-12% to obtain a cleaning mother liquor, referring to fig. 1, the arrow in fig. 1 is the flow direction of the cleaning mother liquor, the cleaning mother liquor in the full flow tank 4 circulates between the full flow tank 4 and the saturator 1 and between the mother liquor storage tank 5 and the saturator 1, and the cleaning mother liquor in the saturator 1 circulates between the crystallization pump 6 and the saturator 1 and between the second mother liquor pump 3 and the saturator 1, and the cleaning mother liquor with higher acidity can dissolve the impurities accumulated in the first mother liquor pump 2, the saturator 1, the full flow tank 4, the mother liquor storage tank 5, the crystallization pump 6, the second mother liquor pump 3 and the pipelines (in the description, the first mother liquor pump 2, the saturator 1, the full flow tank 4, the saturator 4, and the impurities in the pipelines are dissolved (in the first mother liquor pump 2, the saturator 1, the full flow tank 4, the saturator 3 and the saturator 1), Mother liquor storage tank 5, crystallizing pump 6 and second mother liquor pump 3 are collectively called as the internal parts of the equipment), impurities in the first mother liquor pump 2, saturator 1, full flow tank 4, mother liquor storage tank 5, crystallizing pump 6, second mother liquor pump 3 and each pipeline are discharged by adding 50-80 ℃ cleaning water, and the cleaning water at higher temperature is more favorable for further dissolving the impurities.
In the embodiment, the temperature T of the cleaning water is 60 ℃, and the pressure P of the cleaning water is 0.5Mpa, so that the components in the equipment are prevented from being damaged by high temperature and high pressure, and the optimal cleaning effect of the components and pipelines in the equipment is ensured. Of course, in other embodiments, the temperature and pressure of the washing water can be flexibly changed according to actual needs, and are not particularly limited herein.
Preferably, the circulation time of the cleaning mother liquor between the full flow tank 4 and the saturator 1 and between the mother liquor storage tank 5 and the saturator 1 is controlled to be 60-90min, the circulation time of the cleaning mother liquor between the crystallization pump 6 and the saturator 1 and between the second mother liquor pump 3 and the saturator 1 is controlled to be 60-90min, and the cleaning mother liquor is used for soaking the parts and the pipelines in the equipment for 60-90min, so that impurities in the parts and the pipelines in the equipment can be effectively dissolved, the cleaning effect is better, and some impurities with larger sizes can be fully dissolved in the cleaning mother liquor after falling off from the parts or the pipelines in the equipment, and the blockage of the pipelines by the impurities with larger sizes is prevented.
Wherein the specific operation of adding the washing water into the full flow pipe 8 is as follows: the fourth valve 20 on the full flow pipe 8 is opened and wash water is passed from the fourth valve 20 into the full flow pipe 8. The introduction of the cleaning water into third communication tube 13 is operated to: the third valve 19 on the third communication pipe 13 is opened, and the washing water is fed from the third valve 19 into the three communication pipes. Since the washing water is directly fed from the fourth valve 20 and the third valve 19 into the full flow pipe 8 and the third communicating pipe 13, respectively, it is not necessary to specially provide joints on the full flow pipe 8 and the third communicating pipe 13, and the operation is facilitated.
Specifically, step S200 further includes: the washing water is flushed inside the full flow pipe 8 for a first period of time and the washing water is flushed inside the third communication pipe 13 for a second period of time. Further, the first time period and the second time period are both 5min, which enables the washing water to smoothly discharge the impurities in the components and pipes inside the apparatus.
The specific steps of increasing the acidity of the mother liquor in the full-flow tank 4 to 9-12% are as follows: the acid pump 7 is used for pumping the acid liquor into the mother liquor in the full-flow groove 4, wherein the acidity of the acid liquor is larger than that of the mother liquor, and in the step, the acid pump 7 in the equipment is directly used for pumping the acid liquor with higher acidity into the full-flow groove 4 to be mixed with the mother liquor to obtain the cleaning mother liquor, so that an additional tool is not needed, and the cleaning cost is saved.
Specifically, before pumping the acid liquor into the full flow groove 4, the acidity of the mother liquor in the full flow groove 4 is obtained, then the preset amount of the acid liquor pumped into the full flow groove 4 is determined according to the acidity of the mother liquor in the full flow groove 4, the preset amount of the acid liquor is pumped into the full flow groove 4, the acid liquor and the mother liquor are mixed, and the cleaning mother liquor is obtained.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principles of the present invention have been described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The cleaning method of the coal gas deamination equipment is characterized by comprising the following steps of:
step S100, increasing the acidity of the mother liquor in the full-flow tank to 9-12% to obtain a cleaning mother liquor, circulating the cleaning mother liquor in the full-flow tank between the full-flow tank and a saturator and between a mother liquor storage tank and the saturator by using a first mother liquor pump, circulating the cleaning mother liquor in the saturator between a crystallization pump and the saturator and circulating the cleaning mother liquor in the saturator between a second mother liquor pump and the saturator;
step S200, adding cleaning water into a full flow pipe between the full flow pipe and the saturator, enabling the cleaning water to enter the full flow pipe, the first mother liquid pump, the saturator and the mother liquid storage tank from the full flow pipe, adding the cleaning water into a third communication pipe between the saturator and the crystallization pump, enabling the cleaning water to enter the saturator, the second mother liquid pump and the crystallization pump from the third communication pipe, enabling the temperature of the cleaning water to be T and the pressure of the cleaning water to be P, controlling the temperature of the cleaning water to be more than or equal to 50 ℃ and less than or equal to 80 ℃, and controlling the pressure of the cleaning water to be more than or equal to 0.45MPa and less than or equal to 0.65 MPa.
2. The cleaning method of gas deamination equipment as claimed in claim 1, wherein the time period for circulating the cleaning mother liquor between the overflow tank and the saturator and between the mother liquor storage tank and the saturator is controlled to be 60-90min, and the time period for circulating the cleaning mother liquor between the crystallization pump and the saturator and between the second mother liquor pump and the saturator is controlled to be 60-90 min.
3. The method for cleaning a gas deamination apparatus as claimed in claim 1, wherein the temperature T of the cleaning water is 60 ℃.
4. The method of claim 1, wherein the pressure P of the washing water is 0.5 MPa.
5. The cleaning method of a gas deamination apparatus according to claim 2, wherein the specific operation of adding the cleaning water into the full flow pipe is as follows: and opening a fourth valve on the full flow pipe, and introducing the washing water into the full flow pipe from the fourth valve.
6. The method for cleaning a gas deamination apparatus according to claim 5, wherein the step of adding the cleaning water into the third communicating pipe is performed by: and opening a third valve on the third communication pipe, and adding the cleaning water into the third communication pipe from the third valve.
7. The method for cleaning a gas deamination apparatus according to claim 5, wherein the step S200 further comprises: flushing the washing water in the full flow pipe for a first time period, and flushing the washing water in the third communication pipe for a second time period.
8. The cleaning method of gas deamination equipment as claimed in claim 7, wherein the first time period and the second time period are both 5 min.
9. The cleaning method of gas deamination equipment as claimed in claim 1, wherein the specific steps of increasing the acidity of the mother liquor inside the full flow tank to 9-12% are as follows: pumping an acid solution into the mother liquor inside the full flow cell using an acid pump, wherein the acidity of the acid solution is greater than the acidity of the mother liquor.
10. The cleaning method of a gas deamination device as claimed in claim 9, wherein before the acid solution is pumped into the full flow tank, the acidity of the mother solution inside the full flow tank is obtained, then a preset amount of acid solution to be pumped into the full flow tank is determined according to the acidity of the mother solution inside the full flow tank, and the preset amount of acid solution is pumped into the full flow tank to be mixed with the mother solution, so as to obtain the cleaning mother solution.
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| CN202210442425.2A CN114713577A (en) | 2022-04-25 | 2022-04-25 | Cleaning method of coal gas deamination equipment |
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| CN202210442425.2A CN114713577A (en) | 2022-04-25 | 2022-04-25 | Cleaning method of coal gas deamination equipment |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995035419A1 (en) * | 1994-06-20 | 1995-12-28 | H.E.R.C. Products Incorporated | Method of cleaning and maintaining potable water distribution pipe systems with a heated cleaning solution |
| JPH0881215A (en) * | 1994-09-12 | 1996-03-26 | Nkk Corp | Production of granular ammonium sulfate |
| CN105692654A (en) * | 2016-03-17 | 2016-06-22 | 山东钢铁股份有限公司 | Method and system for producing ammonium sulfate through gas deamination |
| CN111662753A (en) * | 2020-05-08 | 2020-09-15 | 广东韶钢松山股份有限公司 | Tandem type coke oven gas final cooling purification equipment and process thereof |
| CN111792652A (en) * | 2020-07-09 | 2020-10-20 | 中冶焦耐(大连)工程技术有限公司 | Ammonium sulfate acidification system and process |
| CN212349762U (en) * | 2020-05-29 | 2021-01-15 | 齐吉锴 | Device of quick mediation of thermal power plant's gas ammonia pipeline |
| CN113234495A (en) * | 2021-06-10 | 2021-08-10 | 河北益普莱环保科技有限公司 | Novel fountain ammonium sulfate saturator |
| CN113274931A (en) * | 2021-06-08 | 2021-08-20 | 中冶焦耐(大连)工程技术有限公司 | Acid adding process and system for recovering ammonia in production of ammonium sulfate by saturator method |
-
2022
- 2022-04-25 CN CN202210442425.2A patent/CN114713577A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995035419A1 (en) * | 1994-06-20 | 1995-12-28 | H.E.R.C. Products Incorporated | Method of cleaning and maintaining potable water distribution pipe systems with a heated cleaning solution |
| JPH0881215A (en) * | 1994-09-12 | 1996-03-26 | Nkk Corp | Production of granular ammonium sulfate |
| CN105692654A (en) * | 2016-03-17 | 2016-06-22 | 山东钢铁股份有限公司 | Method and system for producing ammonium sulfate through gas deamination |
| CN111662753A (en) * | 2020-05-08 | 2020-09-15 | 广东韶钢松山股份有限公司 | Tandem type coke oven gas final cooling purification equipment and process thereof |
| CN212349762U (en) * | 2020-05-29 | 2021-01-15 | 齐吉锴 | Device of quick mediation of thermal power plant's gas ammonia pipeline |
| CN111792652A (en) * | 2020-07-09 | 2020-10-20 | 中冶焦耐(大连)工程技术有限公司 | Ammonium sulfate acidification system and process |
| CN113274931A (en) * | 2021-06-08 | 2021-08-20 | 中冶焦耐(大连)工程技术有限公司 | Acid adding process and system for recovering ammonia in production of ammonium sulfate by saturator method |
| CN113234495A (en) * | 2021-06-10 | 2021-08-10 | 河北益普莱环保科技有限公司 | Novel fountain ammonium sulfate saturator |
Non-Patent Citations (1)
| Title |
|---|
| 姜辉明等: "喷淋式饱和器法生产硫铵工艺的应用", 《天津冶金》 * |
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